Prosecution Insights
Last updated: May 29, 2026
Application No. 18/171,000

METHOD FOR MAKING A BATTERY CAN FOR P-TYPE PRISMATIC CELLS

Non-Final OA §103
Filed
Feb 17, 2023
Examiner
NGUYEN, DONGHAI D
Art Unit
3729
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
GM Global Technology Operations LLC
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
666 granted / 884 resolved
+5.3% vs TC avg
Strong +29% interview lift
Without
With
+29.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
17 currently pending
Career history
902
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
75.7%
+35.7% vs TC avg
§102
15.4%
-24.6% vs TC avg
§112
6.7%
-33.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 884 resolved cases

Office Action

§103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Election/Restrictions Applicant’s election without traverse of Group I (claims 1-11) in the reply filed on February 10, 2026 is acknowledged. Thus, claims 12-20 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected Inventions, there being no allowable generic or linking claim. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1-11 are rejected under 35 U.S.C. 103 as being unpatentable over U.S. Patent 12,512,539 to Guen or in view U.S. Patent 11,251,497 to Goldin et al. Regarding claims 1-2 and 4-8, Guen discloses a method for making a battery can (140), comprising: identifying as target capacity of an internal battery volume (inherent because the must have predetermined specification for producing a high dimensional accuracy battery see Abstract); generating a prismatic model (drawings) of the battery can (140), wherein the battery can includes a first portion having a first contour and a second portion having a second contour (see Fig. 3E); producing a first portion blank and a second portion blank, using a first manufacturing process (punching, see Fig. 3B); modifying (bending/shaping) the first portion blank and the second portion blank, using a second manufacturing process (folding by die/mold), to create the first contour and the second contour (see Fig. 3C); joining the first portion having the first contour and the second portion having the second contour, using a third manufacturing process (welding by laser welding, see Col. 4, lines 14-18 create seam welding as shown in Fig. 3E); and inspecting the battery can to verify the joining between the first portion and the second portion and the contour portion (inherent since visual inspection are always required in manufacture high quality product). If Applicant disagrees to the position of the Examiner regarding the inherency of the claimed limitation. Goldin et al disclose a method of manufacturing a prismatic battery including inspecting the assembling of the two welding case of the battery (see Fig. 6, step 545) for quality control. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the invention of Guen by utilizing the step of inspecting the welding join between the first portion and second portion as taught by Goldin et al for quality assurance of a product. Regarding claim 3, Goldin et al disclose the step of laser cutting process using a high precision laser cutting process to produce the first portion blank and the second portion blank (see Col. 21, lines 47-49). Regarding claims 9-10, Guen discloses the safety vent (153) in the battery can (see Fig. 1). Regarding claim 11, Guen discloses applying an insulation coating on one or more of an inside surface, an outside surface and a seam of the battery can (see Col. 4, lines 43-47). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Prior art cited for their general teaching of manufacturing a prismatic cell. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DONGHAI D NGUYEN whose telephone number is (571)272-4566. The examiner can normally be reached M-F 9:00-5:30. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Thomas J. Hong can be reached at 571-272-0993. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /DN/ /DONGHAI D NGUYEN/April 4, 2026 Primary Examiner, Art Unit 3729
Read full office action

Prosecution Timeline

Feb 17, 2023
Application Filed
Apr 15, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
75%
Grant Probability
99%
With Interview (+29.3%)
3y 0m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 884 resolved cases by this examiner. Grant probability derived from career allowance rate.

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